CS6 hyperlink problem

Hi everyone,

In Indesign CS6, I created a new URL hyperlink and pasted the following link into the field:

http://law.ato.gov.au/atolaw/view.htm?docid=AID/AID2004688/00001

But when I click OK and then look in the URL field in the hyperlinks panel, I see that Indesign has changed the link to the following:

http://law.ato.gov.au/atolaw/view.htm%3Fdocid%3DAID/AID2004688/00001

Notice how it's swapping out the question mark (?) after .htm with %3F.

It's also swapping out the equals sign (=) with %3D.

This breaks the URL and makes it no longer workable.

I tried reinstalling Indesign but the problem still remains.

I wondered if anyone knows why this is happening and whether there's a workaround?

Appreciate any help.